CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 14, Issue 6,2011, Pages 443-447, doi:10.3760/cma.j.issn.1671-0274.2011.06.016
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CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 14, Issue 6,2011, Pages 408-410, doi:10.3760/cma.j.issn.1671-0274.2011.06.004
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